CN210387196U - Utilize modulus of continuity to prepare apparatus for producing skylight sunshade screen control box side support - Google Patents
Utilize modulus of continuity to prepare apparatus for producing skylight sunshade screen control box side support Download PDFInfo
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- CN210387196U CN210387196U CN201920990421.1U CN201920990421U CN210387196U CN 210387196 U CN210387196 U CN 210387196U CN 201920990421 U CN201920990421 U CN 201920990421U CN 210387196 U CN210387196 U CN 210387196U
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Abstract
The utility model discloses an utilize continuous molding to be equipped with apparatus for producing of skylight sunshade screen control box side support belongs to automobile parts production facility technical field. The device comprises a punch press, a progressive die arranged on the punch press in the front-back direction, and a stepping feeding structure arranged on the punch press and positioned at the front end of the progressive die, wherein the progressive die comprises a lower die on a workbench of the punch press and an upper die matched with the lower die and arranged on a punch of the punch press; the progressive die is sequentially provided with a first punching station, a first edge cutting station, a second edge cutting station, a first forming station, a second forming station, a third edge cutting station, a lower folding station, a first idle step station, a second punching station, a second idle step station and a cutting forming station from front to back. The device adopts the progressive die to generate two products simultaneously, thereby saving time and labor, having higher efficiency and having the capacity of 800 plus 1200/H. Only one punch is adopted for production, thereby saving machines. Meanwhile, the continuous die production can reduce the reject ratio.
Description
Technical Field
The utility model belongs to the technical field of automobile parts production facility, in particular to utilize continuous molding to be equipped with apparatus for producing of skylight sunshade screen control box side support.
Background
Referring to fig. 1 and 2, the side bracket of the control box of the sun-shading curtain for the skylight comprises a part body 1, a turnover part 2 on one side of the part body, a first step surface 4, a groove part 5, a second step surface 6, a first convex hull 7, a second convex hull 8 and 6 through holes 27. For the stamping production of automobile parts, the single-station die has a single structure and low production efficiency, and the die with a complex structure has fewer stations and is not beneficial to the stamping forming of products. Specifically, the part requires 4 processes (4 equipment, 4 workers; capacity 300/H) if produced with a single process mold.
And the progressive die adopts a press machine to punch raw materials in a strip shape in one punching stroke, a plurality of cold punching stamping dies of a plurality of punching processes are simultaneously completed on a pair of dies by a plurality of different stations, and the material strip moves once at a fixed distance every time the dies complete the punching until the product processing is completed.
The patent with the application number of CN201520291316.0 discloses a production line for integrated furred ceiling panel, including being the feedway that linear interval arranged, leveling device and panel processingequipment, feedway, leveling device and panel processingequipment form a linear panel processing passageway within a definite time, processingequipment includes the punch press of taking continuous mould, the anterior port of continuous mould is equipped with a step-by-step feeding mechanism, continuous mould is including matched cope match-plate pattern and lower bolster, the cope match-plate pattern is including last preceding working face and last back working face that is located its lower surface both sides, the lower bolster is including the lower preceding working face and the lower back working face that are located its lower surface both sides, cope match-plate pattern and lower bolster all are long platelike, be equipped with on the working face in opposite directions of cope match-plate pattern and lower bolster and be the tangent angle structure, the cutting structure and the shaping structure that the linear set up in proper order in succession, the stable supply of raw materials is realized through the feeding device, the leveling device and the stepping feeding mechanism, and the continuous panel processing operation is realized through the vertical die assembly of the continuous die.
The patent with the application number of CN 201820002637.8 discloses a progressive die for a lower cross beam of a back row of an automobile, which comprises a progressive die upper die base and a progressive die lower die base, wherein the progressive die upper die base and the progressive die lower die base are used for manufacturing a corresponding structure of the lower cross beam of the back row of the automobile, the progressive die upper die base comprises an upper cushion foot, an upper die base, an upper padding plate, an upper clamping plate and a stripper plate which are sequentially arranged from top to bottom, the progressive die lower die base comprises a lower supporting plate, a lower cushion foot, a lower die base, a lower padding plate and a lower die plate which are sequentially arranged from bottom to top, and a waste material; a first punching station, a second punching station, a third idle step station, a fourth upward 45-degree bending forming station, a fifth idle step station, a sixth upward 90-degree bending forming station, a seventh idle step station, an eighth shaping station, a ninth idle step station, a tenth punching station and an eleventh cutting and workpiece discharging station are sequentially arranged between the upper continuous die base and the lower continuous die base; and a conveying device for conveying the workpieces at each station is also arranged between the upper die base and the lower die base of the progressive die.
The applicant finds that the skylight sunshade screen control box side support can be prepared by adopting a continuous die, the efficiency is higher, and the product precision is higher.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the embodiment of the utility model provides an utilize continuous molding to be equipped with apparatus for producing of skylight sunshade screen control box side support, labour saving and time saving, efficiency is higher. The technical scheme is as follows:
the embodiment of the utility model provides an utilize continuous mould to be equipped with apparatus for producing skylight sunshade screen control box side support, the apparatus includes that the progressive die that sets up along the fore-and-aft direction on punch press, the punch press and the step-by-step feeding structure that is located the progressive die front end on the punch press, the progressive die includes the lower mould on the workstation of punch press and the last mould that cooperates with the lower mould on the drift of punch press; the progressive die is sequentially provided with a first punching station, a first edge cutting station, a second edge cutting station, a first forming station, a second forming station, a third edge cutting station, a lower folding station, a first idle step station, a second punching station, a second idle step station and a cutting forming station from front to back. The first punching station punches and cuts three circular positioning holes 9 which are arranged in a shape like a Chinese character 'pin' on the central line of the raw material belt 3, the middle circular positioning hole 9 is positioned on the central line of the raw material belt 3, and the two circular positioning holes 9 on the two sides are arranged in bilateral symmetry with the central line of the raw material belt 3. The first trimming station punches a circular positioning hole 9 in the middle to obtain a circular arc positioning hole 10 which is arranged around the first trimming station and is opened backwards. And the second trimming station performs trimming on the left and right sides of the raw material belt 3 and two circular positioning holes 9 corresponding to the left and right sides of the raw material belt in a bilateral symmetry manner. The first forming station punches two first convex hulls 7 and two first step surfaces 4 which are symmetrical left and right about the central line of the raw material belt 3. The second forming station punches two second convex hulls 8, two groove parts 5 and two second step surfaces 6 which are symmetrical left and right with the central line of the raw material belt 3. The third trimming station punches a precut hole 12 on the center line of the raw material tape 3. And the lower folding station bends the left side and the right side of the raw material belt 3 downwards in a bilateral symmetry mode by using the central line of the raw material belt to obtain bent parts 2. The second punching station punches and cuts 12 through holes 27 on the raw material strip 3 in bilateral symmetry about its center line and performs the punching. And the cutting forming station punches the raw material belt 3 at the front side of the pre-cutting hole 12 and corresponding to the circular arc positioning hole 10 and the middle circular positioning hole 9 to form and cut two products.
The upper die in the embodiment of the present invention includes an upper die holder 15 and an upper die plate 16 directly below the upper die holder 15, the upper die holder 15 is fixed on the punch, the upper die plate 16 can move up and down relative to the upper die holder 15, and a cutter capable of penetrating out of the upper die plate 16 is arranged at the lower side of the upper die holder 15 to perform punching; the lower die comprises a lower die base 17 and a lower die plate 18 right above the lower die base 17, the lower die base 17 is fixed on the workbench, and the lower die plate 18 is provided with a blanking hole matched with the cutter; and concave-convex dies matched with each other are arranged on the upper template 16 and the lower template 18 for punch forming and downward folding.
Further, the embodiment of the utility model provides an on the lower bolster 18 and be located first idle step station and second idle step station department all along the front and back to being equipped with two material blocking block 19, be equipped with on the cope match-plate pattern 16 with material blocking block 19 complex material blocking block holding hole 20, two material blocking block 19 of same station are located the adjacent outside of 3 left and right sides in raw materials area respectively.
Wherein, the left and right sides of the upper die holder 15 and the left and right sides of the lower die plate 18 in the embodiment of the utility model are respectively provided with die holder limiting columns 21 which are mutually matched and used for limiting the descending height of the upper die holder 15; the left side and the right side of the lower template 18 and the left side and the right side corresponding to the upper template 16 are provided with template limiting columns 22 for limiting the descending height of the upper template 16; the left side and the right side of the upper die holder 15 and the left side and the right side of the lower template 18 are respectively provided with a guide structure 23 which are matched with each other.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides an utilize modulus of continuity to be equipped with apparatus for producing of skylight sunshade screen control box side support, the device adopt modulus of continuity to generate two products simultaneously, labour saving and time saving, efficiency is higher, and the productivity can reach 800 supplyes with drugs 1200/H. Only one punch is adopted for production, thereby saving machines. Meanwhile, the continuous die production can reduce the reject ratio.
Drawings
FIG. 1 is a right side view of a sunroof shade control box side bracket;
FIG. 2 is a left side view of the sunroof shade control box side bracket;
FIG. 3 is a flow chart illustrating the forming of a workpiece according to an embodiment of the present invention;
fig. 4 is a schematic view of a workpiece forming station provided in an embodiment of the present invention;
fig. 5 is a schematic structural view of an upper die in an embodiment of the present invention;
fig. 6 is a bottom view of the upper die in the embodiment of the present invention;
fig. 7 is a side view of an upper die in an embodiment of the invention;
fig. 8 is a schematic structural view of a lower die provided in an embodiment of the present invention;
fig. 9 is a top view of a lower mold according to an embodiment of the present invention;
fig. 10 is a side view of a lower die according to an embodiment of the present invention.
In the figure: 1, a workpiece body, 2 bending parts, 3 raw material belts, 4 first step surfaces, 5 groove parts, 6 second step surfaces, 7 first convex hulls, 8 second convex hulls, 9 circular positioning holes, 10 circular positioning holes, 11 second trimming station wastes, 12 pre-cutting holes, 13 pre-forming wastes, 14 forming wastes, 15 upper die seats, 16 upper die plates, 17 lower die seats, 18 lower die plates, 19 material blocking blocks, 20 material blocking block accommodating holes, 21 die seat limiting columns, 22 die plate limiting columns, 23 guide structures, 24 guide pins, 25 material ejecting pins, 26 feeding guide, 27 through holes, 101 first punching dies, 102 first trimming dies, 103 second trimming dies, 104 first forming dies, 105 second forming dies, 106 third trimming dies, 107 downward folding dies, 108 second punching dies and 109 cutting forming dies.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-10, the embodiment of the utility model provides an utilize modulus of continuity to be equipped with apparatus for producing of skylight sunshade screen control box side support, the device include on the modulus of continuity and the punch press that set up along the front and back on punch press, the punch press and be located the step-by-step feeding structure etc. of modulus of continuity front end, the modulus of continuity includes on the lower mould on the workstation of punch press and the drift of punch press and with lower mould complex last mould etc.. The structure is basically the same as that of the existing continuous die processing device, and the difference is that: according to the product to be manufactured, the progressive die is sequentially provided with a first punching station, a first edge cutting station, a second edge cutting station, a first forming station, a second forming station, a third edge cutting station, a downward folding station, a first idle step station, a second punching station, a second idle step station and a cutting forming station from front to back. The first punching station punches three circular positioning holes 9 arranged in a shape like a Chinese character 'pin' on the center line of the raw material belt 3, the middle circular positioning hole 9 (the subsequent station is provided with a guide needle 24 (arranged on an upper die) at a position corresponding to the middle circular positioning hole) is positioned on the center line of the raw material belt 3, and the two circular positioning holes 9 on the two sides are arranged in bilateral symmetry with the center line of the raw material belt 3. The middle circular positioning hole 9 is at the back, and the two circular positioning holes 9 at the two sides are at the front (arranged symmetrically left and right by the central line of the raw material belt 3) and correspond to the second trimming station. The first trimming station punches a circular positioning hole 10 which is arranged around the first trimming station and is opened backwards at the middle circular positioning hole 9. The circular arc-shaped positioning hole 10 is semicircular and concentric with the middle circular positioning hole 9, and the arrangement of the circular arc-shaped positioning hole is beneficial to positioning when a subsequent first forming station punches a step surface. And the second trimming station performs trimming on the left and right sides of the raw material belt 3 and the two circular positioning holes 9 corresponding to the left and right sides of the raw material belt in a bilateral symmetry manner by using the central line of the raw material belt 3 to obtain second trimming station waste 11 which is copying punching. The first molding station punches two first convex hulls 7 (1 on the left and right) and two first step surfaces 4 (1 on the left and right, respectively) which are bilaterally symmetrical about the center line of the raw material belt 3. The second forming station punches two second convex hulls 8 (1 on the left and right sides, respectively), two groove portions 5 (1 on the left and right sides, respectively, forming a rectangular groove), and two second step surfaces 6 (1 on the left and right sides, respectively, forming a rectangular groove) symmetrically left and right about the center line of the raw material belt 3. The third trimming station punches a precut hole 12 on the center line of the raw material tape 3. The pre-cutting holes 12 are strip-shaped holes arranged in the front-back direction, which is beneficial to positioning in the subsequent process (the guide needles 24 (arranged on the upper die) are arranged at the positions corresponding to the subsequent stations) so as to facilitate the subsequent cutting and forming. The lower folding station bends the left and right sides of the raw material belt 3 downwards in a left-right symmetrical mode by using the central line of the raw material belt to obtain bent parts 2 (90 degrees). The second punching station punches 12 holes 27 (6 left and right) symmetrically left and right about the center line of the raw material strip 3 and performs the punching (simultaneously, the second trimming station punches the front side to obtain the preformed scrap 13). The cutting and forming station performs die cutting (to obtain a forming scrap 14) on the raw material tape 3 at the front side of the pre-cut hole 12 (the rear side of the pre-cut hole 12 of the previous workpiece) and at the positions corresponding to (cutting off) the circular arc-shaped positioning hole 10 and the middle circular positioning hole 9 to perform forming and cutting to obtain two products.
Referring to fig. 5-10, the upper die in the embodiment of the present invention includes an upper die base 15 and an upper die plate 16 (horizontally disposed from front to back) directly below the upper die base 15, the upper die base 15 is fixed on the punch, the upper die plate 16 can move up and down relative to the upper die base 15, and a cutter capable of penetrating out from the upper die plate 16 (on which a hole for the cutter to pass through is formed) is disposed at the lower side of the upper die base 15 to perform the punching process. The lower die comprises a lower die base 17 and a lower die plate 18 (horizontally arranged in the front-back direction) and the like right above the lower die base, the lower die base 17 is fixed on the workbench, and the lower die plate 18 is provided with a blanking hole matched with the cutter (located right below the corresponding cutter and corresponding to the cutter in shape). The upper template 16 and the lower template 18 are provided with concave-convex dies which are matched with each other for punch forming and downward folding. The arrangement of the upper die holder 15, the upper die plate 16, the lower die holder 17 and the lower die plate 18 is the same as that of the conventional progressive die structure, and is well known to those skilled in the art, so that detailed description thereof is omitted.
Further, referring to fig. 5-10, in the embodiment of the present invention, the lower mold plate 18 is provided with two material blocking blocks 19 (which are symmetrical with respect to the central line of the raw material belt 3) along the front-back direction to prevent the raw material belt 3 from deviating, and the material blocking blocks 19 are rectangular blocks vertically disposed. The upper die plate 16 is provided with a material blocking block accommodating hole 20 (specifically, a rectangular hole) which is matched with the material blocking block 19 (located right above the material blocking block 19 and larger than the material blocking block 19), and the two material blocking blocks 19 on the same station are respectively located on the adjacent outer sides of the left side and the right side of the raw material belt 3.
Specifically, referring to fig. 5-10, the front end of the lower platen 18 in this embodiment is provided with a feed guide 16 in the front-to-rear direction; the feed guide 16 is a rectangular groove opened upward, wherein a line coincides with a center line of the raw material belt 3 and has a width slightly wider than that of the raw material belt 3. Specifically, the lower template 18 is provided with a first punching die 101 (provided with a blanking hole), a first trimming die 102 (provided with a blanking hole), a second trimming die 103 (provided with a blanking hole), a first forming die 104 (provided with a male and female die), a second forming die 105 (provided with a male and female die), a third trimming die 106 (provided with a blanking hole), a downward folding die 107 (provided with a male and female die), two material blocking blocks 19, a second punching die 108 (provided with a blanking hole), two material blocking blocks 19 and a cutting forming die 109 (provided with a blanking hole) in sequence from front to back. The upper die plate 16 is sequentially provided with a first punching die 101 (provided with a cutter), a first trimming die 102 (provided with a cutter and a guide needle 24), a second trimming die 103 (provided with a cutter and a guide needle 24), a first forming die 104 (provided with a male die and a guide needle 24), a second forming die 105 (provided with a male die and a guide needle 24), a third trimming die 106 (provided with a cutter and a guide needle 24), a lower folding die 107 (provided with a male die, a guide needle 24 and an ejector needle 25), two material blocking block accommodating grooves 20 (provided with a guide needle 24 and an ejector needle 25 therebetween), a second punching die 108 (provided with a cutter, a guide needle 24 and an ejector needle 25 therebetween), two material blocking block accommodating grooves 20 (provided with a guide needle 24 and an ejector needle 25 therebetween) and a cutting forming die 109 (provided with a cutter) from front to back. The guide needles 24 are arranged on the center line of the raw material belt 3 corresponding to the middle circular positioning holes 9 (the guide needles 24 can be additionally arranged at the pre-cutting holes 12 after the third trimming station) and used for guiding the raw material belt 3 to move backwards, the ejector pins 25 are arranged on the center line of the raw material belt 3 (preferably, the pre-cutting holes 12 are avoided) or are symmetrically arranged on two sides of the center line in a left-right mode and used for demolding, and the ejector pins are arranged on the upper die base 15 in the vertical direction and can penetrate out of the upper die plate 16 downwards, and are circular. Of these, the guide pin 24 and the ejector pin 25 are common structures in a progressive die, and are well known to those skilled in the art, so that detailed description is omitted.
Referring to fig. 5-10, in the embodiment of the present invention, die holder limiting posts 21 (located outside the upper die plate 16, vertically arranged, specifically, in a cylinder, and symmetrically arranged with respect to the center line of the raw material belt 3) are respectively disposed on the left and right sides of the upper die holder 15 and the left and right sides of the lower die plate 18, and are matched with each other to limit the descending height of the upper die holder 15; the left side and the right side of the lower template 18 and the left side and the right side corresponding to the upper template 16 are provided with template limiting columns 22 (the left side and the right side of the raw material belt 3 are arranged symmetrically left and right and vertically, specifically are cylinders) for limiting the descending height of the upper template 16; the template limiting column 22 is positioned at the outer side of the die holder limiting column 21; the left and right sides of the upper die holder 15 and the left and right sides of the lower die plate 18 are provided with guide structures 23 (guide posts (vertically arranged cylinders with springs or balls) and guide holes) which are matched with each other. The die holder limiting column 21, the die plate limiting column 22 and the guiding structure 23 are common structures in a progressive die, and are well known to those skilled in the art, so detailed descriptions are omitted.
In this embodiment, "first", "second", and "third" only have a distinguishing function, and have no other special meaning.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. A production device for preparing a skylight sunshade screen control box side support by utilizing a progressive die comprises a punch press, the progressive die arranged on the punch press in the front-back direction, and a stepping feeding structure arranged on the punch press and positioned at the front end of the progressive die, wherein the progressive die comprises a lower die on a workbench of the punch press and an upper die which is arranged on a punch of the punch press and matched with the lower die; it is characterized in that the preparation method is characterized in that,
the continuous die is sequentially provided with a first punching station, a first edge cutting station, a second edge cutting station, a first forming station, a second forming station, a third edge cutting station, a lower folding station, a first idle step station, a second punching station, a second idle step station and a cutting forming station from front to back;
the first punching station punches and cuts three circular positioning holes (9) which are arranged in a shape like a Chinese character 'pin' on the center line of the raw material belt (3), the middle circular positioning hole (9) is positioned on the center line of the raw material belt (3), and the two circular positioning holes (9) on the two sides are arranged in bilateral symmetry with the center line of the raw material belt (3);
the first trimming station punches a circular positioning hole (9) in the middle to obtain a circular arc positioning hole (10) which is arranged around the first trimming station and is opened backwards;
the second trimming station trims the edges of the two circular positioning holes (9) on the left side and the right side of the raw material belt (3) which correspond to the two sides in a bilateral symmetry mode by using the center line of the raw material belt;
the first forming station punches the raw material belt (3) to obtain two first convex hulls (7) and two first step surfaces (4) which are bilaterally symmetrical about the central line of the raw material belt;
the second forming station punches the raw material belt (3) to obtain two second convex hulls (8), two groove parts (5) and two second step surfaces (6) which are bilaterally symmetrical about the central line of the raw material belt;
the third trimming station punches a precut hole (12) on the central line of the raw material belt (3);
the lower folding station bends the left side and the right side of the raw material belt (3) downwards in a left-right symmetrical mode by using the central line of the left side and the right side to obtain bent parts (2);
the second punching station punches and cuts the raw material belt (3) to obtain 12 through holes (27) which are symmetrical left and right by the central line of the raw material belt and performs preforming;
and the cutting and forming station punches and forms and cuts two products on the raw material belt (3) at the front side of the pre-cutting hole (12) and corresponding to the circular positioning hole (10) and the middle circular positioning hole (9).
2. The device for producing the side bracket of the control box of the sun blind with the continuous mold according to claim 1, wherein the upper mold comprises an upper mold seat (15) and an upper mold plate (16) right below the upper mold seat, the upper mold seat (15) is fixed on a punch, the upper mold plate (16) can move up and down relative to the upper mold seat (15), and a cutter capable of penetrating out of the upper mold plate (16) downwards is arranged on the lower side of the upper mold seat (15) for punching; the lower die comprises a lower die base (17) and a lower die plate (18) right above the lower die base, the lower die base (17) is fixed on the workbench, and blanking holes matched with the cutters are formed in the lower die plate (18); and concave-convex dies matched with each other are arranged on the upper template (16) and the lower template (18) so as to perform punch forming and downward folding.
3. The production device for preparing the skylight sunshade screen control box side support by using the continuous molding according to claim 2, characterized in that two material blocking blocks (19) are respectively arranged on the lower template (18) and at the first idle working position and the second idle working position along the front-back direction, a material blocking block accommodating hole (20) matched with the material blocking blocks (19) is arranged on the upper template (16), and the two material blocking blocks (19) at the same working position are respectively arranged at the adjacent outer sides of the left side and the right side of the raw material belt (3).
4. The production device for preparing the side bracket of the control box of the sun blind for the skylight by utilizing the continuous mold as claimed in claim 2, wherein the left side and the right side of the upper mold base (15) and the left side and the right side of the lower template (18) are respectively provided with a mold base limiting column (21) which are matched with each other and used for limiting the descending height of the upper mold base (15); template limiting columns (22) used for limiting the descending height of the upper template (16) are arranged on the left side and the right side of the lower template (18) and correspond to the left side and the right side of the upper template (16); the left side and the right side of the upper die holder (15) and the left side and the right side of the lower template (18) are respectively provided with a guide structure (23) which are matched with each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990421.1U CN210387196U (en) | 2019-06-27 | 2019-06-27 | Utilize modulus of continuity to prepare apparatus for producing skylight sunshade screen control box side support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990421.1U CN210387196U (en) | 2019-06-27 | 2019-06-27 | Utilize modulus of continuity to prepare apparatus for producing skylight sunshade screen control box side support |
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| CN210387196U true CN210387196U (en) | 2020-04-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814305A (en) * | 2021-10-11 | 2021-12-21 | 天津希利汽车部品有限公司 | Stamping die for skylight mounting bracket |
| CN115430773A (en) * | 2022-11-07 | 2022-12-06 | 苏州铭峰精密机械有限公司 | Continuous stamping method for high-low side square-strip folding structural part |
-
2019
- 2019-06-27 CN CN201920990421.1U patent/CN210387196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814305A (en) * | 2021-10-11 | 2021-12-21 | 天津希利汽车部品有限公司 | Stamping die for skylight mounting bracket |
| CN115430773A (en) * | 2022-11-07 | 2022-12-06 | 苏州铭峰精密机械有限公司 | Continuous stamping method for high-low side square-strip folding structural part |
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